IC manufacturers Texas Instruments

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Texas Instruments OPA837 | Demoboard TIDA-01055

ADC Voltage Reference Buffer Optimization Reference Design for High Performance DAQ Systems

Overview

TopologyOther Topology
IC revisionE1

Description

The TIDA-01055 reference design for high performance DAQ Systems optimizes the ADC reference buffer to improve SNR performance and reduce power consumption with the TI OPA837 high-speed op amp. This device is used in a composite buffer configuration and provides a 22% power improvement over traditional op amps. Voltage reference sources with an integrated buffer often lack the drive strength required to achieve optimal performance in a high-channel count systems. This reference design is capable of driving several ADCs, and achieves a system ENOB of 15.77 bits using an 18-bit, 2-MSPS SAR ADC.

Features

Remark: Schematic and BOM PDF are added.

  • Two-Stage Buffer Design for Reducing NoiseGenerated From Voltage Reference
  • Implements New Low-Power Reference Driver WithSlew Rate Capability to Drive a 2-MSPS SAR ADC

Typical applications

  • Data Acquisition(DAQ)
  • Lab Instrumentation, semiconductor test equipment, LCD test equipment
  • Battery Test

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesApplicationPCB/Cable/PanelModularityWire SectionλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
CTol. CVR
(V (DC))
SizeOperating TemperatureQ
(%)
RISOCeramic TypeL
(mm)
W
(mm)
Fl
(mm)
L
(µH)
ISAT
(A)
fres
(MHz)
MountTiØ ID
(mm)
Ø OD
(mm)
Qty.Pins
(pcs)
RowsH
(mm)
GenderTypeIR
(A)
Packaging Samples
691213710002SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-TBL Series 213 - 5.00 mm Horiz.l Entry Modular Rising Cage Clamp PCB Yes 26 to 16 (AWG) 0.5 to 1.5 (mm²) -40 °C up to +105 °C 10 THT 2 Horizontal 10 Box
744025006SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WE-TPC SMT Tiny Power Inductor 2828 -40 °C up to +125 °C 2.8 2.8 6.8 1.3 59 SMT 550 2 2.8 1.1
744031680SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WE-TPC SMT Tiny Power Inductor 3816 -40 °C up to +125 °C 3.8 3.8 68 0.22 12 SMT 1000 2 1.65 0.32
150060RS75000SPEC
26 files Active i| Production is active. Expected lifetime: >10 years.WL-SMCW SMT Mono-color Chip LED Waterclear 625 Red 630 250 2 AlInGaP 140 0603 -40 °C up to +85 °C 1.6 0.8 SMT 4000 0.7 Tape and Reel
885012006057SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 50 V(DC)100 pF ±5% 50 0603 -55 °C up to +125 °C 100010 GΩ NP0 Class I 1.6 0.8 0.4 4000 0.8 7" Tape & Reel
9774050360RSPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

6 files Active i| Production is active. Expected lifetime: >10 years.WA-SMSI SMT Steel Spacer with internal Thread M3 -55 °C up to +150 °C 5 M3 4.2 6 650 Tape and Reel
61300211121SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.54 mm THT Pin Header -40 °C up to +105 °C1000 MΩ 5.08 THT 2 Single Pin Header Straight 3 Bag
61300311121SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WR-PHD 2.54 mm THT Pin Header -40 °C up to +105 °C1000 MΩ 7.62 THT 3 Single Pin Header Straight 3 Bag
Order Code Data­sheet Simu­lation
691213710002SPEC
744025006SPEC
744031680SPEC
150060RS75000SPEC
885012006057SPEC
9774050360RSPEC

PCN pending

Due to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff.

61300211121SPEC
61300311121SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesApplicationPCB/Cable/PanelModularityWire SectionλDom typ.
(nm)
Emitting ColorλPeak typ.
(nm)
IV typ.
(mcd)
VF typ.
(V)
Chip Technology50% typ.
(°)
CTol. CVR
(V (DC))
SizeOperating TemperatureQ
(%)
RISOCeramic TypeL
(mm)
W
(mm)
Fl
(mm)
L
(µH)
ISAT
(A)
fres
(MHz)
MountTiØ ID
(mm)
Ø OD
(mm)
Qty.Pins
(pcs)
RowsH
(mm)
GenderTypeIR
(A)
Packaging Samples